The software is a free and open-source front-end JavaScript library. In 2013, React.JS was established by Facebook.
It is a User Interface (UI) library that is used to create and manipulate UI components. It is a package that allows developers to create highly efficient data-driven SPA apps.
It is based on functional programming, relies on the concept of immutability, and promotes component-based architecture based on the Single reusability principle.
In this article, we’ll go over the procedures for how to install react on mac. After you’ve completed the installation stages, we urge that you attend React training online.
Let us explore some terms before-
Contents
NodeJS and NPM
- You first need to install NodeJS and NPM to get the installation of React on Mac.
- It is a JavaScript engine that allows you to run it outside of the browser.
- NPM (node package manager) is used on the command line. It is to install libraries like ReactJS.
- You can install NodeJS through their official website. When you install NodeJS, it will also download NPM for you.
- After downloading NodeJS from their website, find the “.pkg” file. Simply double-click on this. It will launch a pop-up for installation.
- You’ll be directed to the installation process. Click “Install,” or “Modify Install Location”
- When the process is complete, you will be prompted with a final message. Your NodeJS and NPM are installed.
Installing ReactJS on MacOS
After installing NodeJS and NPM, one can install ReactJS. It is done by executing npm install- save react react-dom.
Create ReactJS project
Since we have installed ReactJS, one can create a new react project directory. It is done by running npx create react project. create-react-app.
React- Introduction
Before proceeding with the installation of the React-Lib to the Mac, we must first gain a basic understanding of React.
- React is a package that assists web developers and architects in meeting the expectations of customers that require high data flow and rapid responsive UIs in the context of data.
- It is built on a component-based architecture. The webpage can be represented by Parent and Child components.
- It largely relies on Virtual DOM, which functions as a performance optimizer for DOM operations.
- An HTML web page has a DOM tree, which the browser uses to render the web page.
When a user interacts with a page, it entails the addition and insertion of information based on the user’s action. as in A user has added an item to the cart. The cart now displays the changed item as a result of the user’s decision.
Behind the scenes, the HTML document undergoes a transformation that allows the modified page to be shared.
As previously stated, the DOM tree represents the HTML document. In the preceding case, the DOM requires some adjustments, which include the insertion and deletion of particular HTML nodes.
This aids in displaying the essential information that symbolizes what a user is attempting to do in the context of revising his
purchasing decision.
We may see the DOM as a tree to better comprehend it.
The tree has roots as well as branches. Similarly, the HTML element is at the top of the DOM, and nodes below it are connected to the parent node. In terms of tree analogy, the parent node can be represented as the trunk, with other nodes connecting to the trunk. And React is used to improve the insertion and delete operations on these nodes.
There is a memory penalty associated with this insertion and delete operation on the HTML DOM. In terms of DOM update operations, virtual DOM functions as a performance optimizer.
It keeps two copies: one of the real DOM (react DOM) and one of the updates to be made. The process of minimizing modification on the react DOM is also researched as part of the reconciliation process.
Node.js & npm
Node.js executes the code of JavaScript. It is an open-source and across-platform to JavaScript runtime environment. It is powered by the Chrome V8 engine. The Chrome V8 engine is written in C++. Node is compatible with Windows, Mac, and Linux.
After installing Node.js, we may execute the React-based app locally on our system during development. This also allows us to deploy our program to the production server.
Node.js includes the following features:
- Uses JavaScript as its core language
- Non-blocking I/O
- Supports Asynchronous programming
- Can manage numerous connection requests utilizing a single server.
Npmjs.org is an online code repository of thousands of modules (npm) that allows us to install node modules using simple commands.
Some modules are self-contained, whereas others require interdependence to function properly.Node.js allows us to conduct read and write operations on the server. It also allows you to work with databases.
Instead of creating functionality from scratch, we can hunt for a module and reuse and extend its functionality.
Developer initiatives typically involve time and budget constraints. When it comes to Node. js-based development, npmjs.org is a lifeline for the developer community.
To Sum Up
In this tutorial, we learned about React.js and the component-based architecture approach in React.js. We also got a high-level overview of the virtual DOM.
We discussed the concept of reconciliation, the use of Node.js in the world of JavaScript, and its capacity to manage non-blocking I/O output to fulfill client connection requests concurrently.
We tested two techniques for installing Node.js: one with the package management and one with the command line.
To get started quickly using React.js, we used the create-react-app module. We may also use the command line to install React.js.
To avoid getting overloaded with too many details, we used the create-react-app technique for this tutorial. We saw our first react app running after developing it. We rapidly evaluated the important files that are operating the app to become familiar with the code from a development standpoint.
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